/* 公共样式 */
body{
  background-color: #eee;
}

*{
  margin-top: 0;
  padding: 0;
}

.btn{
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.2),0 1px 2px rgba(0,0,0,0.05);
  border-radius: 4px;
}

.btn-danger{
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover{
  color: #fff;
  background-color: #bd362f;
}

.btn:focus{
  outline: none;
}